1156622 has 4 divisors (see below), whose sum is σ = 1734936. Its totient is φ = 578310.

The previous prime is 1156613. The next prime is 1156627. The reversal of 1156622 is 2266511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2266511 = 13 ⋅174347.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1156627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 289154 + ... + 289157.

It is an arithmetic number, because the mean of its divisors is an integer number (433734).

2^1156622 is an apocalyptic number.

1156622 is a deficient number, since it is larger than the sum of its proper divisors (578314).

1156622 is an equidigital number, since it uses as much as digits as its factorization.

1156622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 578313.

The product of its digits is 720, while the sum is 23.

The square root of 1156622 is about 1075.4636209561. The cubic root of 1156622 is about 104.9696662187.

It can be divided in two parts, 11566 and 22, that multiplied together give a palindrome (254452).

The spelling of 1156622 in words is "one million, one hundred fifty-six thousand, six hundred twenty-two".